Finding the Third Proportional to 909,462 and 1,980,385

Step by Step Solution

1. Step 1: Write the proportion equation
   909,462 : 1,980,385 = 1,980,385 : x
2. Step 2: Convert to fraction form
   909,462/1,980,385 = 1,980,385/x
3. Step 3: Cross multiply
   909,462x = 1,980,385 × 1,980,385
4. Step 4: Simplify right side
   909,462x = 3,921,924,748,225
5. Step 5: Solve for x
   x = 3,921,924,748,225/909,462
6. Step 6: Final answer
   x = 4,312,356.92